Self-oiler for sliding musical instruments



, R. SCHOLZ SELF OILER FOR SLIDING MUSICAL INSTRUMENTS Filed Dec. 5, 1925 'INVENTORI TORNEY REIIl'I-IOLD SCHOLZ, OF NEW YORK, N. Y.

SELF-OILER FOR SLIDING MUSICAL INSTRUMENTS.

Application filed December The main object of this invention is to provide lubricating device adaptable for use on a trombone for oiling the reciprocating slide.

iinother object is to provide a container upon fixed tubes of the trombone which are receptive of the slide. The container is provided with a cylinder which is divided into several compartments, one normally locked from the other by a spring projected trap disk which when depressed, allows the small quantity of lubricating a lower compartment drained directly by the parts lubricated.

The above and other objects will become apparent in the description below, in which characters of reference refer to like-named parts in the drawing.

Referring briefly to the drawing, Figure l is a perspective View of a trombone, showin the lubricating devices mounted in their iective positions.

rure 2 a longitudinal sectional elevas tional view, showing the lubricating structure in detail.

Figure 8 is a cross sectional view taken on line. of Figure 2.

Figure 4% is a top plan view of Figure Referring in detail to the drawing, the numeral 10 indicates the horn from which the sound of the musical instrument procoeds. This horn communicates with a tube 11 which extends rearwardly from the horn and has a semi-circular curve 12 at its rear end from which curve, the length of tubing projects. The tube 11 and 13 communicate with each other and the horn thru the semieircularly curved portion 19- and are aligned in a vertical plane. Extending parallel to the tube 13 on a horizontal plane is a short pipe 1% which is of the same dimensions as the tube 13 and is connected with the latter by bars 15 which also serve as elements for holding the trombone in the hands. The rear end of the pipe 14k has a mouthpiece 16 allixed thereto and the forward ends of the tube 13 and pipe 1e are open to permit the ready insertion of the parallel extending tubes 13'' and 18 oi a reciprocating slide. The tubes 17 and 18 of the slide are mutu ally joined by a semi-circularly curved tubular portion 19, and near the curved portion, brace bar 20 is provided for reeni'iorcin the alignment of the tubes 17 and 18. hear the ends of the tube 13 and pipe 1-iwhere the tubes 1? and 18 of the slide liquid to enter into trom which it is 3 1925. Serial No. 72,945.

are inserted into said tube 13 and pipe 14. the lubricating mechanism is mounted. This lubricating mechanism is used in duplicate on each instrument and comprises a longitudinal container having a. roof 21, sides and 23, and an inclined end wall 2 1, and a vertical opposite end wall 25. The lower edges of these end and side walls are brazed to the body of the pipe 14 and tube 18 and form an enclosed chamber 26 into which lubricating oil is adapted to be filled. A trap is provided within the chamber 26 by constructing a cylinder 27 in which a plurality of openings 28 are formed near its upper end. Said cylinder is provided with an internal flange 29 midway of its length within the bore and below the openings 28.

trap disk 30 has its peripheral edge seated upon the surface or face of the flange 29 and is normally retained in such seating contact therewith by a coil spring 31 which rests upon the periphery of the tube or pipe to which the lubricating device is attached. llherever the device is to be used as a lubricating container, the body of the pipe or tube aertorated by a conical opening 32 which passes thru the wall of the tube or pipe within the confines of the chamber 26 directly beneath the cylinder 27 and spring 31. By providing the flange and seating the trap disk 80 on its face, an upper compartment 33 and a lower compartment 3% is provided. These compartments are intercommunicat ng but are normally sealed one from the other by the trap disk which is loosely slidable in the com aartment 3% by virtue of its being of smaller diameter than the bore oi the compartment 3 1 in the cylinder. A lug is provided on the roof- 21 of the casing directly above the cylinder 27. This lug is provided. with a threadable hole in which a threaded shank 35 is engaged. The shank is provided with a head 36 which may be manipulated by the fingers and extends axially downward, its lower end passing thru the compartment 33 and being adapted to contact with and depress the trap disk 30 against the tension of the spring 31.

This lubricating device is particularly adaptable to musical instruments having reciprocating parts, such as a trombone. l'Vl'lElEVGl one tubular member is adapted to reciprocally receive another member, the casing may be mounted on the outer memher to lubricate the bearing surfaces between both. In the case of a trombone, casings are mounted on the pipe 1 1 and tube 13 atte the conical openings are drilled in the walls of these members at desirable positions. The casing consistin of the root 21., side walls and 23, and end walls 3-1 and 25, is mounted upon these members in such posi tion that the lower compartment 34- in the cylinder 27 con'mmnieates with the openings The casing sealed in a leakprooit manner upon the tubes or pipes of the i'nusical instrument by brazing or some similar operation. In order to iill the chamber 26 ot' the casing, the shank 35 is removed from the threaded opening in the lug situated on the casing by manipulating the head 36. The lubricating liquid trickles thru the opening into the upper compartment 33 of the cylinder and then d ains into the chamber 26 thru the openin s 28. The chamber 3-l into which the oil must first pass in order to lubricate the parts desired, is sealed while the casing is being filled by the trap disk 30. hen desiring to lubrcate the parts or sliding surfaces, as it is in this case, the mask 35 is rotated so that it is moved longitudinally downward and depresses the trap disk 30 away form the flange The lubricating liquid will then flow thru the openings past the 'l'lange 29 and a1.ound the trap disk 30 into the compartment The latter is filled in a very short time ant tl e shank 255 may then be rotated in an op tion to permit the spring 31 t the trap disk 30 upon the lace of the flange 29 to close communication between the open compartment and the filling compartment 8%. The oil captured within the compartment 34 will then trickle or flow out therefrom thru the conical opening 32 to the parts it is desired to lubricate.

I claim:

1. A lubricating device for musical insi'run'ients comprising a sealed casing, a cylinder in said casing having an integral flange, a trap disk in said cylinder seating on said flange separating the latter into two compartments, yieldablc means for manul posite direc- 0 again seat ally sealing both compartments, and means for opening said compartments.

2. A lubricating device for musical instruments comprising a casing, a cylinder in said iasing, a trap disk dividing said cylinder into compartments, a spring adapted to yieldably close communication between said con'ipartments, and means lowering said disk for openii'ig communication between said compartments.

A lubricating device for musical instruments comprising a longitudinal casing, a cylinder in said casing, said instrument having an opening communicating with the i in oi the cylinder, a vetrically movable diridin s id cylinder into compartm i s, one above the other, a trap dish closing communic tion between said compartments, yieldable means urging said trap disk to close communication between said compartments, and a threaded shank engaged in said casing passing thru the upper compartment of the cylinder engageable with the trap disk tor lowering the same to permit connnunication between the cylinder A lubricating device for musical instruments comprising a longitudinal casing, a cylinder in said casing, said instrument having an pening communicating with the bottom or the cylinder, a vertically movable disk dividing said cylinder into eo1npart "tents, one above the other, a trap disk closing communication between said comparh meats, yieldable means urging said trap disk to close communication between said compartments, a threaded shank engaged in said c 'ug pi'issing thru the upper compartment of the cylinder engageable with the trap disk for lowering the same to permit comn'iunication between the compartments, said cylind r havil'ig openings con'miunicating with the upper con'ipartment, a flange in said cyl inder below the openings and adapted to seat the trap disk for closing communication between the eompartments therein.

In testimony whereoit l aliix my REINHOLD SCI-IOLZ.

ISO 

